CONTROLS IN COMMON USE

CONTROLS IN COMMON USE10104011011108CONTROLS IN COMMON USEMany different types of controls are in common use. Most operate with low-voltage or line-voltage electric current. Some commercial systems operate with pneumatic pressure or wireless communication. For residential and light commercial centrally convection-heated buildings, use of a single low-voltage interconnected thermostat is common for each unit or dwelling area. Line-voltage thermostats are generally used in conjunction with electric resistance heating systems that are installed and operated on an independent room-by-room or area-by-area basis utiliz…Next Chapter >< Previous Chapter